Compare 49/45 and 72/12
1st number: 1 4/45, 2nd number: 6 0/12
49/45 is smaller than 72/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
49/45 = 49 × 4/45 × 4 = 196/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
72/12 = 72 × 15/12 × 15 = 1080/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 196/180 < 1080/180 or 49/45 < 72/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/45 and 72/12 49/90 and 72/12 49/45 and 72/24 49/45 and 72/36 49/45 and 72/60 49/45 and 72/84